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[NETDEV] Add notion of link state

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Add ability for network devices to flag link up/down state to the
networking core.

Autobooting code will now wait for link-up before attempting DHCP.

IPoIB reflects the Infiniband link state as the network device link state
(which is not strictly correct; we also need a succesful IPoIB IPv4
broadcast group join), but is probably more informative.
This commit is contained in:
Michael Brown
2008-04-22 17:40:50 +01:00
parent d72bf13b78
commit 1ba959c6b3
13 changed files with 110 additions and 2 deletions
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src/include/usr/ifmgmt.h
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@@ -12,5 +12,6 @@ struct net_device;
extern int ifopen ( struct net_device *netdev );
extern void ifclose ( struct net_device *netdev );
extern void ifstat ( struct net_device *netdev );
extern int iflinkwait ( struct net_device *netdev, unsigned int max_wait_ms );
#endif /* _USR_IFMGMT_H */